Who has Fired/Who has Not/Concealment Question

[Xaver]

Maybe is a good add know who shoot, an unit can shoot but be unspoted for example.

A little question, is possible add defensive works to the concealment??? i refer if there is a trench in open terrain you cant know if is full of bad guys or is empty... maybe add this as an optional rule called "extreme FOG"???

I am doing something with scen editor and i have this problem, units are in trenches but terrain is open and enemy can see them even when they are in elevated terrain inside a trench.

Thanks.